View single post by Itsu
 Posted: Jan 29th, 2014 02:09 PM
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Itsu

 

Joined: Dec 6th, 2013
Location: Netherlands
Posts: 11
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Finally got my two 5000 Ohm coils and a piece of Germanium so i could put something together.

The output resistance i measure is between 2000 and 1700 Ohm depending on the pressure and placement of the screw.
This i feed to a 12v battery fed 800W MOSFET amplifier, but still i have to listen with my headset on as the output volume is every very low.

No real signals are heard unless i touch the screw with my fingers, then i hear lots of "mexican dogs" as mentioned in this webside (bottom):
http://www.glowbug.nl/projects/UM58.html

When i keep the signal as steady as possible and get zero beat i hear a local Dutch radio station as i can hear them speak Dutch.

So this thing works then as a crystal radio with me being the antenna.

I will try to get more output, but i guess i need a preamp.

Regards Itsu

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